US7778764B2 - Fuel injection control apparatus and method for a multi-fuel engine, and engine incorporating same - Google Patents

Fuel injection control apparatus and method for a multi-fuel engine, and engine incorporating same Download PDF

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Publication number
US7778764B2
US7778764B2 US12/378,686 US37868609A US7778764B2 US 7778764 B2 US7778764 B2 US 7778764B2 US 37868609 A US37868609 A US 37868609A US 7778764 B2 US7778764 B2 US 7778764B2
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Prior art keywords
fuel
alcohol concentration
injection quantity
basic injection
engine
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Expired - Fee Related
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US12/378,686
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US20090248279A1 (en
Inventor
Atsushi Ito
Yoichi Takahashi
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Assigned to HONDA MOTOR CO., LTD. reassignment HONDA MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ITO, ATSUSHI, TAKAHASHI, YOICHI
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F02D19/061—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/084—Blends of gasoline and alcohols, e.g. E85
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels by estimation, i.e. without using direct measurements of a corresponding sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/023—Temperature of lubricating oil or working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • the present invention relates to a fuel injection control apparatus for a multi-fuel engine. More particularly, the present invention relates to a fuel injection control apparatus for a multi-fuel engine, which is capable of setting, without preparing a basic injection map which determines an injection quantity of fuel for a plurality of operation state of the engine for every alcohol concentration, an optimum fuel injection quantity based on only one basic injection map, irrespective of measured alcohol concentration.
  • an alcohol fuel is considered as a promising fuel, and a vehicle which is capable of operating using an alcohol mixed fuel produced by mixing alcohol and gasoline besides gasoline, e.g. a Flexible Fuel Vehicle (FFV) has been developed.
  • FMV Flexible Fuel Vehicle
  • the alcohol mixed fuel differs from fuel consisting of 100% of gasoline with respect to a heat value and an evaporation characteristic. At the same time, the alcohol mixed fuels differ from each other in characteristics depending on alcohol concentration indicative of a mixing rate of alcohol relative to gasoline.
  • JP-A-2004-2934911 discloses a system for performing correction of fuel injection quantity corresponding to alcohol concentration which is corrected to a value in the vicinity of approximately intermediate concentration.
  • the present invention has been made to overcome such drawbacks of the existing fuel injection system. Accordingly, it is one of the objects of the present invention to provide an apparatus and a method of a fuel injection control for a multi-fuel engine which can overcome the above-mentioned drawbacks of the prior art, and can acquire a proper fuel injection quantity using only one basic injection map irrespective of alcohol concentration of fuel.
  • the present invention is characterized by providing an apparatus for and method of fuel injection control for controlling an applied injection quantity of an alcohol mixed fuel into an engine, based on a detected oxygen concentration in an exhaust gas.
  • the present invention provides a fuel injection control apparatus for a multi-fuel engine.
  • the fuel injection control apparatus includes an oxygen sensor which is configured to measure the oxygen concentration in the exhaust gas; a alcohol concentration-determining apparatus which is configured to determine alcohol concentration of fuel based on a measured value of the oxygen concentration; a basic injection map which is configured to set a basic injection quantity of the fuel for a plurality of operation states of the engine; and an alcohol concentration coefficient table which is configured to set an alcohol concentration coefficient for a plurality of combinations of the basic injection quantity of the fuel and the alcohol concentration of the fuel.
  • the fuel injection control apparatus for a multi-fuel engine further includes an injection quantity selector which is configured to select currently applicable basic injection quantity, corresponding to a current operation state of the engine from the basic injection map; an alcohol concentration coefficient selector, which is configured to select the alcohol concentration coefficient corresponding to the alcohol concentration of the fuel and the basic injection quantity of the fuel from the alcohol concentration coefficient table; and an applied injector quantity calculator, which is configured to calculate a fuel injection quantity based on the basic injection quantity and the alcohol concentration coefficient.
  • the fuel injection control apparatus is characterized in that the alcohol concentration coefficient is set such that the smaller the basic injection quantity, the higher the alcohol concentration coefficient becomes.
  • the fuel injection control apparatus is characterized in that the alcohol concentration coefficient is set to an approximately fixed value when the basic injection quantity is greater than or equal to a predetermined injection quantity.
  • the optimum fuel injection quantity can be acquired irrespective of the alcohol concentration of the fuel based on only one basic injection map, and the alcohol concentration coefficient, which uses the basic injection quantity which can be set for every alcohol concentration as a parameter without providing the basic injection map of fuel for every alcohol concentration. Accordingly, even when it is necessary to review the fuel injection quantity due to a change of the specification of the engine or the like, man-hours for reviewing the basic injection map can be significantly reduced.
  • the third aspect of the present invention it is possible to properly control an air/fuel ratio without making the engine control overly complicated, even in a high-rotary speed range of the engine.
  • FIG. 1 is a simplified schematic diagram showing an internal combustion engine to which a fuel injection control apparatus of the present invention is applied, and a fuel injection control system of the internal combustion engine.
  • FIG. 2 is a functional block diagram showing a constitution of main elements of an ECU, which is one component of the fuel injection control system of FIG. 1 .
  • FIG. 3 is a functional block diagram of a fuel injection control apparatus according to an illustrative embodiment of the present invention.
  • FIG. 4 is a flowchart showing an operation of the fuel injection control apparatus according to the embodiment shown in FIG. 3 .
  • FIG. 5 is a view showing an example of a basic injection map.
  • FIG. 6 is a comparison view of a fuel injection quantity when an alcohol concentration is at a first level (E 1 ) and a fuel injection quantity when the alcohol concentration is at a third level (E 3 ).
  • FIG. 7 is a comparison view of a fuel injection quantity when the alcohol concentration is at a first level (E 1 ) and a fuel injection quantity when the alcohol concentration is at a fourth level (E 4 ).
  • FIG. 8 is a comparison view among an E-concentration coefficient Ke 1 when the alcohol concentration is at a first level, an E-concentration coefficient Ke 3 when the alcohol concentration is at a third level, and an E-concentration coefficient Ke 4 when the alcohol concentration is at a fourth level.
  • a fuel injection quantity, corresponding to alcohol concentration of fuel can be acquired using only one basic injection map. That is, for optimizing a fuel injection quantity irrespective of an alcohol concentration in the fuel, a fuel injection quantity acquired from one basic injection map is multiplied by an alcohol concentration coefficient, which uses a basic injection quantity for a plurality of alcohol concentrations as a parameter (hereinafter referred to as E-concentration coefficient), thus acquiring an applied fuel injection quantity corresponding to the alcohol concentration of the fuel.
  • an alcohol concentration coefficient which uses a basic injection quantity for a plurality of alcohol concentrations as a parameter (hereinafter referred to as E-concentration coefficient)
  • the fuel injection quantity depends on an intake air quantity which an engine requires, and conventionally, the fuel injection quantity is managed in a form of a basic injection map which adopts a rotary engine speed Ne and throttle opening TH (or intake vacuum Pb) as parameters.
  • the fuel injection quantity is set for multiple combinations of the rotary engine speed Ne and the throttle opening TH (a grid point on the map) as exemplified by one example shown in FIG. 5 .
  • the fuel injection quantity can be optimized irrespective of the alcohol concentration of the fuel, by setting the E-concentration coefficient for a plurality of alcohol concentrations with respect to each grid point, using only one basic injection map.
  • such a method requires the registration of the E-concentration coefficient for several alcohol concentrations with respect to each grid point. Hence, the number of E-concentration coefficients becomes enormous.
  • a fuel injection quantity Ti map of every grid point at a first level (E 1 ) where the alcohol concentration is sufficiently low is taken on an axis of an abscissas, and an E-concentration coefficient (Ke 3 ) which is acquired by dividing the fuel injection quantity of the same grid point at a third level (E 3 ), where the alcohol concentration is high, with a fuel injection quantity of the same grid point at the first level E 1 , is taken on an axis of ordinates.
  • a fuel injection quantity Ti map of each grid point at the first level (E 1 ) which becomes the reference is taken on an axis of an abscissas
  • an E-concentration coefficient (Ke 4 ) which is acquired by dividing a fuel injection quantity of the same grid point at a fourth level (E 4 ) having sufficiently high alcohol concentration with a fuel injection quantity of the same grid point at the first level (E 1 ) is taken on an axis of ordinates.
  • the fuel injection quantity Ti map at the first level E 1 and the E-concentration coefficient Ke 4 show a high correlation. Accordingly, the fuel injection quantity at the fourth level E 4 can be optimized, irrespective of the grid point, by multiplying the fuel injection quantity Ti map at the first level E 1 which becomes the reference by the E-concentration coefficient Ke 4 .
  • FIG. 8 is a view showing the relationship between the fuel injection quantity Ti map at the first level E 1 which becomes a reference level, and the E-concentration coefficients Ke 3 , Ke 4 at respective alcohol concentrations based on the above-mentioned result of experiment. It will be understood from FIG. 8 , that a correlation is recognized between the basic injection quantity and the E-concentration coefficient acquired, based on many different alcohol concentrations.
  • the present invention has been made based on the above-mentioned results of experiments, and aims at providing an optimization of fuel injection quantities at many different alcohol concentrations, based on only one basic injection map, relating to certain alcohol concentrations and a plurality of E-concentration coefficients set with respect to some alcohol concentrations using the basic injection map as the reference.
  • FIG. 1 is simplified schematic diagram showing an internal combustion engine to which a fuel injection control apparatus of the present invention is applied, and a fuel injection control system of the internal combustion engine.
  • an intake pipe 2 and an exhaust pipe 7 are connected to an engine 1 , and an air cleaner 3 is arranged at an upstream side of the intake pipe 2 .
  • An amount of intake air admitted to the engine 1 is regulated by a throttle valve 4 disposed inside the intake pipe 2 .
  • a position of the throttle valve 4 in the intake pipe 2 is detected by a throttle opening sensor (hereinafter referred as a TH sensor) 11 .
  • An intake absolute pressure sensor (hereinafter referred as a PBA sensor) 12 measures an intake absolute pressure PBA at a position downstream of the throttle valve 4 .
  • An intake temperature sensor (hereinafter referred as a TA sensor) 16 measures an intake temperature TA in the intake pipe 2 .
  • a coolant temperature sensor (hereinafter referred as a TW sensor) 13 measures a temperature TW of liquid coolant within the engine 1 .
  • a crank angle sensor hereinafter referred as a CRK sensor) 14 measures a crank angle CRK indicative of a crank position of the engine 1 .
  • a three-way catalyst 8 is provided at a downstream side of the exhaust pipe 7 , and an oxygen sensor (hereinafter expressed as an O 2 sensor) 15 .
  • the O 2 Sensor measures oxygen concentration of an exhaust gas in the exhaust pipe 7 .
  • the O 2 sensor is arranged in the exhaust pipe 7 between the engine 1 and the three-way catalyst 8 .
  • An engine control device (ECU: Electronic Control Unit) 10 executes various engine controls, including a fuel injection control, based on measured values outputted from the above-mentioned respective sensors.
  • a fuel injector 5 is opened for a predetermined time, in response to an injection control signal outputted from the ECU 10 , and injects gasoline or a mixed fuel containing mixed gasoline and alcohol.
  • FIG. 2 is a functional block diagram showing configuration main components of the ECU 10 .
  • other components which are not necessary for an explanation of the present invention, are omitted from the drawing.
  • the ECU 10 includes, as main components thereof, a CPU 21 , a RAM 22 which provides a work area in the CPU 21 , a ROM 23 in which programs executed by the CPU 21 and information for an injection control (a basic injection map of fuel, an E-concentration coefficient map, various correction coefficient tables and the like described later) are stored in a non-volatile manner, and an EEP-ROM 24 in which various control parameters are stored in a rewritable and non-volatile manner.
  • the CPU 21 and various memory elements 22 , 23 , 24 are mutually connected with each other via an internal bus.
  • FIG. 3 is a block diagram which functionally expresses the constitution of the fuel injection control apparatus of the present invention.
  • An E-concentration determining unit 100 determines alcohol concentration (ethanol concentration in this embodiment) based on a measured value of voltage VO 2 of the O 2 sensor 15 .
  • the optimum basic injection quantity Ti map when the alcohol concentration is at the first level (E 1 ) is stored in a map form which uses a rotary engine speed Ne and throttle opening TH as parameters.
  • an E-concentration coefficient table (alcohol concentration coefficient table) 102
  • the E-concentration coefficient which is multiplied by the basic injection quantity Ti map for calculating the injection quantity Ti corresponding to the alcohol concentration is stored in a table form for every alcohol concentration of fuel.
  • a group-of-correction-coefficients-table 103 inclusive of a correction coefficient table for acquiring an intake air temperature correction coefficient KTA which corresponds to an intake temperature TA acquired based on a measured result of the TA sensor 16 , various correction coefficient tables for acquiring a water temperature correction coefficient KTW, an acceleration correction coefficient TACC, an environment correction coefficient and the like based on measured values of various sensors such as the TH sensor 11 , the PBA sensor 12 , the TW sensor 13 , the CRK sensor 15 are stored.
  • a basic injection quantity selector (basic injection quantity extracting unit) 104 selects the basic injection quantity Ti map corresponding to the rotary engine speed Ne and the throttle opening TH, for example, from the basic injection map 101 as an engine parameter.
  • An E-concentration coefficient selector (E-concentration coefficient extracting unit) 105 selects the E-concentration coefficient corresponding to the result of determination of the alcohol concentration acquired by the E-concentration determining unit 100 and the above-mentioned basic injection quantity Ti map from the above-mentioned E-concentration coefficient table 102 .
  • a fuel injection quantity calculator (fuel injection quantity calculating unit) 106 calculates a fuel injection quantity Ti out injected from the injector 5 by multiplying the basic injection quantity Ti map by the E-concentration coefficient and, further, by adding various correction coefficients registered in the group-of-correction-coefficients-table 103 to such a value obtained by the multiplication or by further multiplying the value with the various correction coefficients.
  • FIG. 4 is a flowchart showing an operation of the fuel injection control apparatus according to the illustrative embodiment, and the operation is repeated at a predetermined cycle during an operation of the engine.
  • step S 1 the E-concentration determining unit 100 determines the alcohol concentration based on the measured value (voltage) VO 2 of the oxygen sensor 15 .
  • the explanation is continued assuming that the alcohol concentration is determined to be at the third level (E 3 ).
  • step S 2 as the parameters indicative of an operation state of the engine, the rotary engine speed Ne and the throttle opening TH are received by the E-concentration determining unit 100 .
  • step S 3 the basic injection quantity selector 104 retrieves the basic injection map 101 based on rotary engine speed Ne and throttle opening TH as parameters, and selects the basic injection quantity Ti map corresponding to a present engine operation state.
  • step S 4 the E-concentration coefficient selector 105 retrieves the E-concentration coefficient table 102 based on alcohol concentration and basic injection quantity Ti map , and selects the E-concentration coefficient Ke 3 , which is multiplied by the present basic injection quantity Ti map for calculating the optimum injection quantity when the alcohol concentration is at the third level (E 3 ).
  • the E-concentration coefficient can be calculated by performing interpolation processing or extrapolation processing based on two E-concentration coefficients in the vicinity of the alcohol concentration.
  • step S 5 the basic injection quantity Ti map is multiplied by the E-concentration coefficient Ke 3 , and the fuel injection quantity Ti out is calculated by suitably adding other correction coefficient to the multiplied value or by multiplying the multiplied value by other correction coefficient.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
US12/378,686 2008-03-31 2009-02-18 Fuel injection control apparatus and method for a multi-fuel engine, and engine incorporating same Expired - Fee Related US7778764B2 (en)

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JP2008093025A JP5042105B2 (ja) 2008-03-31 2008-03-31 多種燃料エンジンの燃料噴射制御装置
JP2008-093025 2008-03-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100122695A1 (en) * 2008-11-17 2010-05-20 Mitsubishi Electric Corporation Control apparatus for internal combustion engine
CN102953849A (zh) * 2011-08-17 2013-03-06 福特环球技术公司 用于燃料中的醇类浓度补偿的方法和系统
US11624333B2 (en) 2021-04-20 2023-04-11 Kohler Co. Exhaust safety system for an engine
US12006900B1 (en) 2023-07-28 2024-06-11 Caterpillar Inc. System and method for measuring fluid delivery from a multi-fluid injector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7826957B2 (en) * 2009-01-26 2010-11-02 Ford Global Technologies, Llc Engine control responsive to varying amounts of alcohol in fuel
CN103109053B (zh) * 2010-09-01 2016-01-20 丰田自动车株式会社 催化剂劣化检测装置以及方法
DE102011005134B4 (de) * 2011-03-04 2023-03-30 Robert Bosch Gmbh Verfahren zum Bestimmen eines Gehalts an Alkohol in einem Kraftstoffgemisch
KR101961957B1 (ko) * 2012-12-24 2019-03-25 두산인프라코어 주식회사 바이오디젤 함유량에 따른 디젤 엔진 제어 장치 및 방법
US9638117B2 (en) * 2013-03-15 2017-05-02 Honda Motor Co., Ltd. Method for controlling an amount of fuel and vehicle including same
DE102013206552A1 (de) * 2013-04-12 2014-10-16 Robert Bosch Gmbh Verfahren zur Identifikation von Kraftstoffgemischen
KR101567201B1 (ko) * 2014-03-31 2015-11-09 현대자동차주식회사 인젝터 특성 보정 장치
KR101967453B1 (ko) * 2017-11-23 2019-04-09 현대오트론 주식회사 Ffv 차량의 에탄올 센서 고장 대처 시스템 및 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004293491A (ja) 2003-03-28 2004-10-21 Nissan Motor Co Ltd 内燃機関の制御装置
US7475683B2 (en) * 2006-09-25 2009-01-13 Honda Motor Co., Ltd. Fuel injection control device for a variable-fuel engine and engine incorporating same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03217630A (ja) * 1990-01-23 1991-09-25 Nissan Motor Co Ltd 内燃機関の燃料供給装置
JPH0476238A (ja) * 1990-07-17 1992-03-11 Nissan Motor Co Ltd 内燃機関の燃料供給装置
JP4247716B2 (ja) * 2005-02-08 2009-04-02 トヨタ自動車株式会社 内燃機関の燃料噴射制御装置
JP2007177638A (ja) * 2005-12-27 2007-07-12 Toyota Motor Corp 内燃機関の燃料供給装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004293491A (ja) 2003-03-28 2004-10-21 Nissan Motor Co Ltd 内燃機関の制御装置
US7475683B2 (en) * 2006-09-25 2009-01-13 Honda Motor Co., Ltd. Fuel injection control device for a variable-fuel engine and engine incorporating same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100122695A1 (en) * 2008-11-17 2010-05-20 Mitsubishi Electric Corporation Control apparatus for internal combustion engine
US8010278B2 (en) * 2008-11-17 2011-08-30 Mitsubishi Electric Corporation Control apparatus for internal combustion engine
CN102953849A (zh) * 2011-08-17 2013-03-06 福特环球技术公司 用于燃料中的醇类浓度补偿的方法和系统
US8893665B2 (en) 2011-08-17 2014-11-25 Ford Global Technologies, Llc Method and system for compensating for alcohol concentration in fuel
RU2607099C2 (ru) * 2011-08-17 2017-01-10 Форд Глобал Текнолоджиз, Ллк Система двигателя и способ управления работой двигателя (варианты)
US11624333B2 (en) 2021-04-20 2023-04-11 Kohler Co. Exhaust safety system for an engine
US12006900B1 (en) 2023-07-28 2024-06-11 Caterpillar Inc. System and method for measuring fluid delivery from a multi-fluid injector

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US20090248279A1 (en) 2009-10-01
JP2009243407A (ja) 2009-10-22
BRPI0900512A2 (pt) 2009-11-17
JP5042105B2 (ja) 2012-10-03
BRPI0900512B1 (pt) 2020-10-20

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